// Modified From https://docs.microsoft.com/en-us/windows/uwp/launch-resume/activate-an-app
/* -- Method Header Comment
* Name : EnsurePageCreatedAndActivate
* Purpose : Creates the MainPage if it isn't already created. Also activates
* the window so it takes foreground and input focus. Checks how the app was closed,
* if by user or terminated, data will be resumed
* Inputs : LaunchActivatedEventArgs args
* Outputs : None
* Returns : None
*/
private void EnsurePageCreatedAndActivate(LaunchActivatedEventArgs args)
{
// create the window if it doesn't exist
if (Window.Current.Content == null)
{
Window.Current.Content = new MainPage();
}
// activate the window
Window.Current.Activate();
// if the app was closed by termination or by the user
if (args.PreviousExecutionState == ApplicationExecutionState.Terminated ||
args.PreviousExecutionState == ApplicationExecutionState.ClosedByUser)
{
// resume state
StateManagement.App_Resuming(Window.Current.Content as MainPage);
}
}
/* -- Method Header Comment
* Name : StartButton_Click
* Purpose : Called when the start button is clicked
* Inputs : object sender, SuspendingEventArgs e
* Outputs : None
* Returns : None
*/
private void StartButton_Click(object sender, RoutedEventArgs e)
{
if (!StateManagement.WasSuspended)
{
if (_firstGame)
{
// add all the buttons into the array
StateManagement.AddButtonsToArray(this);
// initalize the coordinates of the empty square, which will always start in the bottom right corner
StateManagement.EmptySquare.X = 600;
StateManagement.EmptySquare.Y = 600;
}
// assign a randomized number to each button
AssignButtonValues();
// assign the player name and init game time
StateManagement.PlayerName = NameBox.Text;
StateManagement.GameTime = 0;
}
else
{
// reset suspended flag after the game has resumed
StateManagement.WasSuspended = false;
}
// enable buttons when the start button is clicked
foreach (var b in StateManagement.buttonArray)
{
b.IsEnabled = true;
}
// reset firstGame flag
_firstGame = false;
// display the timer and start it
TimerBlock.Text = TimeSpan.FromSeconds(StateManagement.GameTime).ToString();
StateManagement.gameTimer.Start();
// modify button contents
StartButton.Content = "Restart";
}
